Modified True/False
Indicate
whether the sentence or statement is true or false. If false, change the identified word or
phrase to make the sentence or statement true.
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1.
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The
melting point is the same temperature as the freezing point for a substance.
_______________
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2.
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Substances are either elements or mixtures. _______________
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3.
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The
odor of a substance is a physical property. _______________
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4.
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A
substance can be separated into simpler parts through differences in their physical
properties. _______________
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5.
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Colloids are mixtures. _______________
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6.
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The
freezing of water is a chemical change. _______________
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7.
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Homogeneous mixtures can be separated by physical properties.
_______________
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8.
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Color
is a physical property. _______________
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9.
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When
a firecracker explodes, mass is lost. _______________
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10.
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A
suspension is a homogeneous mixture. _______________
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11.
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The
breaking of a glass window is a physical change. _______________
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Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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12.
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Matter that has a definite volume and a definite shape is a _____. a. | gas | c. | plasma | b. | liquid | d. | solid | | | | |
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13.
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A
gaslike mixture with no definite volume or shape that is made up of positively and negatively charged
particles is a _____. a. | gas | c. | plasma | b. | liquid | d. | solid | | | | |
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14.
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Matter with no definite volume and no definite shape is a _____. a. | gas | c. | plasma | b. | liquid | d. | solid | | | | |
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15.
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Matter that has a definite volume but no definite shape is a _____. a. | gas | c. | plasma | b. | liquid | d. | solid | | | | |
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16.
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Matter in which the particles are free to move in all directions until they have
spread evenly throughout their container is a _____. a. | gas | b. | liquid | c. | plasma | d. | solid | e. | buoyant | | |
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17.
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When
a physical scientist studies the makeup of matter, he or she is studying the matter's
_____. a. | behavior | c. | energy | b. | composition | d. | technology | | | | |
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18.
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Physical science deals with the _____ of matter. a. | energy | b. | composition | c. | living
things | d. | properties | e. | properties and
composition | | |
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19.
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The
process of gathering information through the senses is called _____. a. | analyzing | b. | conclusion | c. | hypothesizing | d. | inferring | e. | observation | | |
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20.
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A
testable prediction about a possible solution to a problem is called _____. a. | a
conclusion | b. | an exercise | c. | an
experiment | d. | a hypothesis | e. | a
variable | | |
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21.
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When
designing an experiment, the first step is to _____. a. | analyze the
data | c. | state a
hypothesis | b. | list a procedure | d. | state the problem | | | | |
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22.
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A
rule or principle that describes the behavior of something in nature is a _____. a. | hypothesis | b. | problem | c. | scientific
law | d. | theory | e. | variable | | |
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23.
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An
explanation of an event that is based on repeated observations and experiments is a
_____. a. | hypothesis | b. | problem | c. | scientific
law | d. | theory | e. | variable | | |
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24.
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The
reason for wearing safety goggles in a laboratory is to _____. a. | improve
eyesight | c. | protect the
experimenter from burns | b. | protect clothing from chemical
spills | d. | protect the eyes
from harmful substances | | | | |
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25.
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Three
examples of physical change are _____. a. | boiling of water, bursting a balloon, and melting a
candle | b. | burning of gasoline, rotting of an egg, and exploding
fireworks | c. | freezing of water, evaporation of gasoline, and rusting a
nail | d. | sawing of wood,
crushing a can, and toasting a marshmallow | | |
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26.
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The
color of ink is a _____. a. | chemical change | c. | physical change | b. | chemical
property | d. | physical
property | | | | |
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27.
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Smoke
is an example of a _____. a. | colloid | b. | mixture | c. | solution | d. | substance | e. | suspension | | |
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28.
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_____
is another name for a homogeneous mixture. a. | Liquid | c. | Substance | b. | Solution | d. | Suspension | | | | |
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29.
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When
two or more substances are combined so each substance maintains its own properties, the result is
_____. a. | a chemical
change | c. | an
element | b. | a compound | d. | a mixture | | | | |
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30.
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The
scattering of light by colloids is called _____. a. | air pollution | c. | suspension | b. | conservation | d. | the Tyndall
effect | | | | |
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Yes/No
Indicate whether you agree with the sentence or
statement.
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You are given a flask that contains 250 mL of a clear, brown liquid. You shine a
light through the liquid, and no light beam is visible. In the following list of items, record a
Y if that item could be a valid inference for the liquid. Record an N if
that item could not be a valid inference.
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31.
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substance
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32.
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colloid
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33.
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solution of a solid in a liquid
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34.
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suspension
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35.
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solution of a liquid in a liquid
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Matching
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Match the labeled parts of Figure 9-1 to the correct terms
below.
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36.
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pure
element
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37.
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mixture of two elements
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38.
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pure
compound
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39.
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mixture of two compounds
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40.
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mixture of a compound and an element
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